Process of forming floats for steam or water traps.



No. 69l.803. Patented Ian. 28, I902.

- w. F. PATTDN.

PROCESS OF FORMING FLOATS FOR STEAM 0R WATER TRAPS.

(Applicatiop filed Apr. 25, 1901. I

(No Model.)

ME NORRIS PETERS co. mom-U010" WASNINGTON, u'. c.

UNITED STATES PATENT 1 OFFICE.

WILLIAM F. PATTON, OF TOLEDO, OHIO.

.- PROCESS OF FORM ING FLOATS FOR STEAM OR WATER TRAPS.

SPECIFICATION forming part of Letters Patent No. 691,803, dated January28, 1902.

Application filed April 25,1901. Serial No. 57,391. (No specimensi) 7 Toall whom it may concern: I

Be it known that 1, WILLIAM F. PATTON, a citizen of the United States,residing attToledo, in the county ofLucas and State of Ohio, haveinvented new and useful Improvements in the Process of Forming Floatsfor Steam or Water Traps, of which the following is aspecification.

My invention relates to a new process for forming hollow seamlessspheres, and more particularly floats for steamor water traps.

The invention consists, broadly, informing a hollow sphere of paraffin,attaching the same to a screw-threaded nipple for engagement with thetrap, and electroplating the paraffin sphere with copper, forming ahollow seamless copper sphere.

The invention consistsin certain othersteps, which will be hereinafterdescribed and claimed.

This process may be carried out by the apparatus shown in theaccompanying draw-. was.

In the accompanying drawings, Figure 1 is a perspective view. Fig. 2 isa sectional view of a portion of the ball and nipple. Fig. 3 is aperspective view of the nipple.

The parafliin sphere l is provided with an opening 2 and is formed byplacing a quantity of melted paraffin in the cylindrical cavity of asectional mold and rotating or rolling the mold about to cause theparaffin to adhere to the wall of the mold-chamber to for-m when cooledand solidified the completed sphere, the opening 2 being formed by anairvent tube fitted in the mold. The nipple A is fitted withinthe'opening 2 and is internallyscrew-threaded at a for engagement withthe lever of a steam or Water trap and is provided with a centralprojecting flange a, which abuts against the outer surface of theparaflin sphere. The paraffin sphere is first subjected to a coating ofplumbago; second, to a coating of iron by hydrogen, and, third, cradledor rolled about (immersed) in sulfate of copper preparatory toelectroplating. It is then electro copper-plated to the desiredthickness, thus producing a seamless ball free from solder and at thesame time light enough to float. The copper shell 1) is also united bythis process to the nipple A. Having thus fully described my invention,what I claim, and desire to secure by Letters Patent, is

1. The process of forming hollow, seamless metallic spheres, which.consists in the following steps: the subjecting of a hollow paraftinsphere having a metallic nipple inserted therein, to a coating'ofplumbago, iron by hydrogen, and sulfate of copper, and then electrooopper plating to the desired thickness, substantially as described.

2. The process of forming hollow metallic spheres, which consists in thefollowing steps: the formation of a base consisting of a hollow paraffinsphere having a metallic nipple inserted therein, and thenelectroplating the paraffin sphere to the desired thickness to form asurrounding shell joined. to said nipple, substantially as described.

3. The process of forming hollow metallic spheres, which consists in thefollowing steps: forming a hollow paraffin sphere having an opening,inserting a flanged metallic nipple in said opening with the flange uponthe exterior of the sphere, and then electroplating the paraffin sphereand nipple to form a shell surrounding the sphere and joined to the Iwall and flange of the nipple, substantially as described.

4. The process of forming hollow metallic spheres which consists in thefollowing steps: forming a hollow paraffin sphere having an opening,inserting a flanged metallic nipple in' said opening with the flangeupon the exterior of the sphere, subjecting the sphere to a coating ofplumbago, iron by hydrogen, and sulfate of copper, and thenelectroplating to the desired depth, forming a shell surrounding thesphere and joined to said nipple, substantially as described.

In testimony whereof I have hereunto set I my hand in the presence oftwo subscribing witnesses.

, WILLIAM F. PATTON. Witnesses:

CHAS. R. MILLER, OHAs. M. BALL.

